WO2004000518A1 - Gypsum panels and their method of manufacture - Google Patents

Gypsum panels and their method of manufacture Download PDF

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Publication number
WO2004000518A1
WO2004000518A1 PCT/PL2003/000055 PL0300055W WO2004000518A1 WO 2004000518 A1 WO2004000518 A1 WO 2004000518A1 PL 0300055 W PL0300055 W PL 0300055W WO 2004000518 A1 WO2004000518 A1 WO 2004000518A1
Authority
WO
WIPO (PCT)
Prior art keywords
panel
scale
technological
length units
panels
Prior art date
Application number
PCT/PL2003/000055
Other languages
French (fr)
Inventor
Jacek Kuc
Original Assignee
Rigips Polska - Stawiany Sp. Z O.O.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rigips Polska - Stawiany Sp. Z O.O. filed Critical Rigips Polska - Stawiany Sp. Z O.O.
Publication of WO2004000518A1 publication Critical patent/WO2004000518A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/001—Applying decorations on shaped articles, e.g. by painting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B19/00—Machines or methods for applying the material to surfaces to form a permanent layer thereon
    • B28B19/0092—Machines or methods for applying the material to surfaces to form a permanent layer thereon to webs, sheets or the like, e.g. of paper, cardboard
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
    • E04C2/043—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres of plaster
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2002/001—Mechanical features of panels
    • E04C2002/004—Panels with profiled edges, e.g. stepped, serrated

Definitions

  • the present invention relates to a process for manufacturing a panel for facing walls, in particular a cardboard-gypsum panel, and to a panel for facing walls, in particular a cardboard- gypsum panel used in building engineering as a finishing element for interiors.
  • Panels for facing walls used as finishing elements in building engineering are well known. Such panels are fastened to a rigid substrate, e.g. to appropriate metal supports, with screws appropriately spaced, in accordance with building standards.
  • An exemplary embodiment of panel fastening is presented in EP 0385864, wherein a finishing insulating panel is fastened to a rigid surface with a metal element which stiffens the fastening at panel edges.
  • This solution presents also a mode of fimshing joints between panels by filling a technological recess located at edges of adjacent panels with putty. It is expected that in the ready wall these joints will not be distinguishable from the rest of the surface of finishing facing panel. Due to their characteristics cardboard-gypsum panels are perfect, fast to assemble, relatively inexpensive and convenient finishing elements.
  • Such panels are manufactured in a technological system wherein gypsum hemihydrate is continuously slurried with water and conventional additives in a known manner in a continuous mixer equipped with metering devices to form a fluid, homogenous, quick-bonding mix.
  • This mix is applied onto a moving cardboard web, covered with another cardboard web and passed through a forming station to form a fully covered web, and then along the whole edge of the web technological recesses are made with respect to the web face, said recesses making it possible to obtain, in subsequent assembly process, an appropriate gap required for filling with putty.
  • This initially soft cardboard-gypsum web hardens within a short period of time. Then it is cut into single panels having appropriate dimensions. Said panels are immediately dried in a shelf drier. Finished panels are stacked on a pallet.
  • the object of the present invention was to provide a manufacturing process and a construction of a panel which would reduce problems connected with fastening such a panel to a wall.
  • the process for manufacturing a panel for facing walls, in particular a cardboard-gypsum panel used in building engineering, comprising forming a web, making longitudinal technological recesses with respect to the web face along the web edges, drying, cutting the dried web into panels and stacking finished panels on a pallet, is characterized in that after drying the panel a scale of length units is plotted on the surface of at least one of said technological recesses.
  • the scale of length units on the surface of technological recess of the plate is plotted with the use of print technology.
  • the plate prior to plotting the scale of length units on the surface of technological recess, the plate is fixed in a predetermined position, and is cut to final lenghth after the scale of length units has been plotted.
  • the panel for facing walls according to invention in particular a cardboard-gypsum panel having on its longer edges technological recesses with respect to its face, is characterized in that a scale of length units is situated on the surface of at least one technological recess.
  • the scale of length units on the surface of technological recess is printed with the use of an ink inert to putty and paints used for painting walls.
  • a panel for facing walls by the process of invention allows for faster assembly of panels because the plotted scale of length units is used for spacing of mounting screws.
  • the plotted scale of length units is also used when cutting off a part of the panel which is discarded to obtain a panel cut to a length required for facing a wall. It was also found that the scale of length units does not cause any problem when panels are assembled, due to the fact that it is printed on the surface, in the technological recess at the edge of panel, in a place where usually a reinforcing tape is affixed and joints of panels are filled with putty. Therefore after affixing the tape and filling, the scale of length units becomes invisible to the user. Further advantages of the invention consist in material saving due to elimination of measurement mistakes during assembling, savings of screws and increased assembling accuracy, which in turn results in better quality of walls and ceilings.
  • FIG. 1 shows schematically the process of invention for manufacturing cardboard-gypsum panels
  • Fig. 2 shows a cardboard-gypsum panel of the invention, with partially enlarged portion of its longer side.
  • gypsum hemihydrate water and conventional liquid and solid additives, supplied from tanks 2 with the use of metering devices, are slurried in a known, continuous manner in a continuous mixer 3, to produce fluid, homogenous, quick-bonding mix.
  • exemplary additives are glass fiber, silicone and starch.
  • the mix is applied onto a moving cardboard web forming the face of the panel, supplied from a roller 1, and then it is covered with another cardboard web, supplied from a roller 4, passed through a forming station 5 (an extruder) and formed into a fully covered web, and subsequently at the edges of the web, along their entire length, technological recesses with respect to the web face are made, said recesses making it possible to obtain, in the subsequent assembly process, an appropriate gap required for filling with putty.
  • This initially soft cardboard-gypsum web hardens within a short period of time during the transport thereof on a forming belt 6. Subsequently in the cutting station the web is cut with the use of shears 7 into single panels of required dimensions.
  • Said panels are turned over in a panel reversing device 8, and then they are dried in a shelf drier 9.
  • the dried panel is fixed in a predetermined position with the use of walking actuators, and then at the edges of the plate, along its length, a scale 16 of length units is printed on the surface of technological recesses at a scale printing station 10.
  • After printing the scale 16 of length units panels are cut to a final length with the use of saws at a cutting station 11, and finally they are stacked on a pallet at a receiving station 12.
  • a scale 16 of length units is printed on the surface of each technological recess 15.
  • the scale 16 of length units is printed with the use of an ink, e.g. an alcohol-based ink which is inert to putty and paints used for painting walls, e.g. acrylic paints.
  • the hardened web produced by forming on forming belt, was cut into panels with a 5 mm length excess at each front side, and these panels were dried in a shelf drier. After drying a metric scale with digits 10 mm high was printed in a direct print process with the use of VTDEOJET alcohol-based ink (ink consumption 0.0000024 1/m 2 ) on both technological recesses of the panel, and both front sides of the panel were cut to a final dimensions.
  • VTDEOJET alcohol-based ink ink consumption 0.0000024 1/m 2

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Finishing Walls (AREA)

Abstract

The invention relates to a process of manufacturing a panel for facing walls, in particular a cardboard-gypsum panel used in building engineering and to a cardboard-gypsum panel used in building engineering. The process comprising forming a web, making along its edges longitudinal technological recesses (15) with respect to its face, drying, cutting the dried web into panels (13) and stacking the finished panels on a pallet, is characterized in that after drying the panel a scale (16) of length units is plotted on the surface of at least one of the technological recesses (15). The inventive panel for facing walls, especially a cardboard-gypsum panel having on its longer edges technological recesses (15) with respect to its face, is characterized in that a scale (16) of length units is situated on the surface of at least one technological recess.

Description

GYPSUM PANELS AND THEIR METHOD OF MANUFACTURE
The present invention relates to a process for manufacturing a panel for facing walls, in particular a cardboard-gypsum panel, and to a panel for facing walls, in particular a cardboard- gypsum panel used in building engineering as a finishing element for interiors.
Panels for facing walls used as finishing elements in building engineering are well known. Such panels are fastened to a rigid substrate, e.g. to appropriate metal supports, with screws appropriately spaced, in accordance with building standards. An exemplary embodiment of panel fastening is presented in EP 0385864, wherein a finishing insulating panel is fastened to a rigid surface with a metal element which stiffens the fastening at panel edges. This solution presents also a mode of fimshing joints between panels by filling a technological recess located at edges of adjacent panels with putty. It is expected that in the ready wall these joints will not be distinguishable from the rest of the surface of finishing facing panel. Due to their characteristics cardboard-gypsum panels are perfect, fast to assemble, relatively inexpensive and convenient finishing elements.
Such panels are manufactured in a technological system wherein gypsum hemihydrate is continuously slurried with water and conventional additives in a known manner in a continuous mixer equipped with metering devices to form a fluid, homogenous, quick-bonding mix. This mix is applied onto a moving cardboard web, covered with another cardboard web and passed through a forming station to form a fully covered web, and then along the whole edge of the web technological recesses are made with respect to the web face, said recesses making it possible to obtain, in subsequent assembly process, an appropriate gap required for filling with putty. This initially soft cardboard-gypsum web hardens within a short period of time. Then it is cut into single panels having appropriate dimensions. Said panels are immediately dried in a shelf drier. Finished panels are stacked on a pallet.
In order to fasten such panels to a wall, appropriate spacing of screws are measured on each panel at the construction site, in accordance with building standards, and then the panels are measured and cut to a size matching the wall being faced.
The object of the present invention was to provide a manufacturing process and a construction of a panel which would reduce problems connected with fastening such a panel to a wall.
The process for manufacturing a panel for facing walls, in particular a cardboard-gypsum panel used in building engineering, comprising forming a web, making longitudinal technological recesses with respect to the web face along the web edges, drying, cutting the dried web into panels and stacking finished panels on a pallet, is characterized in that after drying the panel a scale of length units is plotted on the surface of at least one of said technological recesses.
Preferably the scale of length units on the surface of technological recess of the plate is plotted with the use of print technology.
In a preferred embodiment of the process of invention, prior to plotting the scale of length units on the surface of technological recess, the plate is fixed in a predetermined position, and is cut to final lenghth after the scale of length units has been plotted.
The panel for facing walls according to invention, in particular a cardboard-gypsum panel having on its longer edges technological recesses with respect to its face, is characterized in that a scale of length units is situated on the surface of at least one technological recess.
Preferably the scale of length units on the surface of technological recess is printed with the use of an ink inert to putty and paints used for painting walls.
Manufacturing a panel for facing walls by the process of invention allows for faster assembly of panels because the plotted scale of length units is used for spacing of mounting screws. The plotted scale of length units is also used when cutting off a part of the panel which is discarded to obtain a panel cut to a length required for facing a wall. It was also found that the scale of length units does not cause any problem when panels are assembled, due to the fact that it is printed on the surface, in the technological recess at the edge of panel, in a place where usually a reinforcing tape is affixed and joints of panels are filled with putty. Therefore after affixing the tape and filling, the scale of length units becomes invisible to the user. Further advantages of the invention consist in material saving due to elimination of measurement mistakes during assembling, savings of screws and increased assembling accuracy, which in turn results in better quality of walls and ceilings.
An embodiment of the invention is shown in the drawing wherein Fig. 1 shows schematically the process of invention for manufacturing cardboard-gypsum panels, and Fig. 2 shows a cardboard-gypsum panel of the invention, with partially enlarged portion of its longer side.
In a technological system gypsum hemihydrate, water and conventional liquid and solid additives, supplied from tanks 2 with the use of metering devices, are slurried in a known, continuous manner in a continuous mixer 3, to produce fluid, homogenous, quick-bonding mix. Exemplary additives are glass fiber, silicone and starch. The mix is applied onto a moving cardboard web forming the face of the panel, supplied from a roller 1, and then it is covered with another cardboard web, supplied from a roller 4, passed through a forming station 5 (an extruder) and formed into a fully covered web, and subsequently at the edges of the web, along their entire length, technological recesses with respect to the web face are made, said recesses making it possible to obtain, in the subsequent assembly process, an appropriate gap required for filling with putty. This initially soft cardboard-gypsum web hardens within a short period of time during the transport thereof on a forming belt 6. Subsequently in the cutting station the web is cut with the use of shears 7 into single panels of required dimensions. Said panels are turned over in a panel reversing device 8, and then they are dried in a shelf drier 9. The dried panel is fixed in a predetermined position with the use of walking actuators, and then at the edges of the plate, along its length, a scale 16 of length units is printed on the surface of technological recesses at a scale printing station 10. After printing the scale 16 of length units, panels are cut to a final length with the use of saws at a cutting station 11, and finally they are stacked on a pallet at a receiving station 12.
On the cardboard-gypsum panel 13 manufactured by the process of invention technological recesses 15 with respect to the face of the panel are made at the edges 14. A scale 16 of length units is printed on the surface of each technological recess 15. The scale 16 of length units is printed with the use of an ink, e.g. an alcohol-based ink which is inert to putty and paints used for painting walls, e.g. acrylic paints.
Example
A cardboard-gypsum panel having the dimensions 12.5 mm x 1.2 m x 2.5 m, and having along both its longer edges technological recesses 45 mm wide, was manufactured with the use of white facing cardboard having basis weight of 210 g/m2 and width of 1240 mm, and gray backing cardboard having basis weight of 169 g/m2 and width of 1182 mm. Following materials were used: cardboards manufactured by Davidson, Great Britain; standard gypsum mix: gypsum in an amount of 9.06 kg/m2, HRA accelerant in an amount of 0.037 kg/m2, sodium soap as fluidizing agent in an amount of 0.00069 kg/m2, and water in an amount of 5.4 1/m2. Glass fiber, silicone and corn starch were used as standard additives. The hardened web, produced by forming on forming belt, was cut into panels with a 5 mm length excess at each front side, and these panels were dried in a shelf drier. After drying a metric scale with digits 10 mm high was printed in a direct print process with the use of VTDEOJET alcohol-based ink (ink consumption 0.0000024 1/m2) on both technological recesses of the panel, and both front sides of the panel were cut to a final dimensions.

Claims

Claims
1. A process for manufacturing a panel for facing walls, in particular cardboard-gypsum panel used in building engineering, comprising forming a web, making longitudinal technological recesses with respect to the web face along its edges, drying, cutting the dried web into panels and stacking finished panels on a pallet, characterized in that after drying the panel (13) a scale (16) of length units is plotted on the surface of at least one technological recesses
(15).
2. A process according to Claim 1, characterized in that the scale (16) of length units is plotted on the surface of technological recess (15) of the plate with the use of print technology.
3. A process according to Claim 1 or 2, characterized in that prior to the printing of the scale (16) of length units on the surface of technological recess (15), the panel is fixed in a predetermined position, and after printing the scale (16) of length units the panel (13) is cut to a final length.
4. A panel for facing walls, in particular a cardboard-gypsum panel, having on its longer edges technological recesses with respect to its face, characterized in that a scale (16) of length units is situated on the surface of at least one of the technological recesses (15).
5. A panel according to claim 4, characterized in that the scale (16) of length units on the surface of technological recess (15) of the panel is printed with the use of an ink inert to putty and paints used for painting walls.
PCT/PL2003/000055 2002-06-19 2003-06-18 Gypsum panels and their method of manufacture WO2004000518A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PL354598A PL205090B1 (en) 2002-06-19 2002-06-19 Method of manufacture of wall cladding boards and wall cladding board
PLP-354598 2002-06-19

Publications (1)

Publication Number Publication Date
WO2004000518A1 true WO2004000518A1 (en) 2003-12-31

Family

ID=29997621

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PCT/PL2003/000055 WO2004000518A1 (en) 2002-06-19 2003-06-18 Gypsum panels and their method of manufacture

Country Status (2)

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PL (1) PL205090B1 (en)
WO (1) WO2004000518A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3298888A (en) * 1965-08-12 1967-01-17 United States Gypsum Co Production of ribbed building board
US4781558A (en) * 1986-09-26 1988-11-01 The Celotex Corporation Apparatus for making an embossed gypsum panel

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3298888A (en) * 1965-08-12 1967-01-17 United States Gypsum Co Production of ribbed building board
US4781558A (en) * 1986-09-26 1988-11-01 The Celotex Corporation Apparatus for making an embossed gypsum panel

Also Published As

Publication number Publication date
PL205090B1 (en) 2010-03-31
PL354598A1 (en) 2003-12-29

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